Top-roll saddle.



L. S. BACHE. TOP ROLL SADDLE. APPLICATION Hm) JUNE 17. m4.

Patented Nov. 20, 1917.

WITNESSES waxes of high melting point, give the most perfect results.

In the drawings, a, Z) and 0 represent the upper and 1, 2 and 3 the lower rolls of a set, the saddle resting upon the upper rolls which have a free movement in their frame so that they may be pressed with greater or less tension upon the lower rolls 1, 2, 3.

Upon the roll a rests the top saddle member at of the saddle. This top member is provided with a transverse bar or interengaging projection 55, which enters and rests upon the bottom of one or the other of the transverse grooves 6, 7 of thebottom saddle member 8. V

The bottom saddle member has suitably formed bearing surfaces upon its under side to engage the rolls 6, 0 and may be adjusted with reference to the top member and said rolls It is well known that in certain classes of work more rolls are used than in others and this provision for longitudinal adjustment of the top and bottom parts makes any desired combination of rolls possible. I

The top member is provided upon its upper face with a series of grooves or notches 9, 10, 11 which may be arranged in-any. desired number. In either of these notches there is hung a stirrup 12 to the lower end of which is attached a weight, spring or any well known form of tensioning device.

T he position of the stirrup upon the top member and the relative adjustments of the top and bottom members determines. the degree and application of the pressure or tension of the rolls of the upper set with reference to the rolls of the lower set.

It will be noted that the lower portion of the bar 5 of the top member is somewhat beveled so that there is in effect a knife edge or line bearing between the top and bottom members. This is not an essential but reduces surface contact and gives a more delicate distribution of the tensioning forces upon the various rolls and parts.

By providing ahomogeneous lubricating material for both the top and bottoinmembers it is at once apparent that all contact ing parts are perfectly lubricated and that there is a minimum of friction throughout the structure.

Furthermore, there is uniformity in the co-efiicient of expansion which precludes the possibility of throwing the parts out of even the finest and most delicate adjustments.

There is no heating as the initial'friction draws a sufficient film of lubricant upon the bearing parts which perfectly lubricates and prevents further rise in temperature (to dangerous or destroying points) and thus prevents all wear. A saddle of the type defined is practically indestructible although it may be renewed in whole or in part at a minimum cost. It is freefrom dirt and will not soil the rolls as the lubricant does not flow in sufficient quantities to work back upon the roll coverings or fly from the bearings.

The exact forms of top and bottom parts may be modified to suit the requirements of any design of spinning frame and the number of roll bearing surfaces and stirrup notches, as well as the number of transverse slots, in the bottom member may be varied to suit the exigencies of any particular case.

I do not, claim herein specifically the method or process of treating wood or fiber with graphite and lubricating materials, nor do I claim broadly herein, a two part saddle having a free longitudinal adjustment of its parts, as such matter is to be made the sub ect of other applications.

Vifhat I claim as my invention and desire to secure by Letters Patent is j 1. A saddle for spinning frames comprising a top and bottom saddle member of solid homogeneousmaterial, said top member having an inter-engaging projection extending from its under side, and arranged transversely from side to side thereof, said bottom member having a plurality of transverse openings having continuous sides eitherof which openings is arranged to receive the transverse inter-engaging projection of the top member, whereby thesaddle members may be adjustedinto either one of two positions with referenceto each other.

2. A saddle for spinning frames comprising a top and bottom saddle member of solid homogeneous material, each provided with bearing surfaces for respective rolls of the spinning frame, transversely formed receivmg groove-s having continuous sides arranged in the upper surface of thebottom saddle, a transversely arranged inter-engaging projection extending from the under side of the top saddle member, and arranged transversely from side to side thereof, and a plurality of stirrup grooves upon the top member, whereby said parts may beadjusted with reference to the rolls with an adjusted tension.

3. A saddle for spinning frames compris-.

ing an upper and a lower saddle member of solid homogeneous material, a. transverse inter-engaging projection onv the lower side of the upper saddle. member extending from side to side thereof, transverse receiving.

grooves for said inter-engaging projection in the upper side of the lower saddle mem: her, said grooves having continuous sides, and said transverse inter-engaging projection of the upper saddle member having its lower end beveled to provide substantially a knife edge engagement with the bottom of the grooves of the lower member when resting therein.

4. A saddle for spinning frames comprising a top and a bottom saddle member, both of said members of a homogeneous fibrous self-lubricating material, said upper saddle having a transverse inter-engagin projection on its under side, extending rom side to side thereof, said lower saddle member having transverse grooves from side to side thereof to receive the transverse engaging member of the upper saddle part, and means for adjustably applying a tension device to the parts and their respective rolls.

LEIGH S. BAGHE.

Witnesses:

W. F. JENNINGS, KATE BRENNER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0." 

